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Figure 2 | BMC Neuroscience

Figure 2

From: Regulatory mechanisms of testosterone-stimulated song in the sensorimotor nucleus HVC of female songbirds

Figure 2

Testosterone stimulated the growth of song control nuclei in female European robins. Photomicrographs are shown for the HVC (A-C, E-G) and the RA (D, H) after staining with 0.1 % thionin (Nissl staining: A, D, E, H) and an anti-NeuN antibody (B, C, F, G), respectively. Sagittal forebrain cryostat sections were obtained from control (left panels) and testosterone (right panels) female robins. Arrows indicate the border of a song control nucleus; scale bars represent 100 μm (C for C and G) and 500 μm (B for B and F; D for D and H), respectively. Note that the testosterone treatment increased the volume (A, B vs E, F; D vs H), neuron size and spacing (C vs G) of a song control nucleus.

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BMC Neuroscience

ISSN: 1471-2202

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